Invisia Towel Bar 16" Oil Rubbed Bronze Integrated support rail with a 500lb. capacity. INV-TB16-ORB. Professional grade construction and superior quality fittings ensure years of uncompromising support. Discreet wall stems with concealed screws Meticulously designed wall interface stems render mounting areas virtually invisible. Multi-Contact wall support While two-point contact with the wall structure is standard for most support rails and bathroom accessories much of the Invisia Collection overachieves with up to 4 points of contact for maximum structural support. Finish Oil Rubbed Bronze (Custom Order)
http://www.invisiacollection.com/wp-content/uploads/2016/11/DC154-Instructions-INV-Towel-Bar.pdf